Linux Cluster Segments

• CoolMUC-2
• CoolMUC-3
• CoolMUC-4
• LRZ AI Systems

LRZ Linux Cluster Overview

The LRZ Linux Cluster consists of several segments with different types of interconnect and different sizes of shared memory. All systems have a (virtual) 64 bit address space:

• CooLMUC2 Cluster with 28-way Haswell-based nodes and FDR14 Infiniband interconnect, used for both serial and parallel processing
• Intel Broadwell based 6 TByte shared memory server HP DL580 "Teramem"
• CooLMUC3 Cluster with 64-way KNL 7210-F many-core processors and Intel Omnipath OPA1 interconnect, for parallel/vector processing

Based on the various node types the LRZ Linux cluster offers a wide span of capabilities:

• mixed shared and distributed memory
• large software portfolio
• flexible usage due to various available memory sizes
• parallelization by message passing (MPI)
• shared memory parallelization with OpenMP or pthreads
• mixed (hybrid) programming with MPI and OpenMP